摘要
CO2驱油过程中,CO2与水、岩石、原油发生物理化学反应,生成沉淀或溶蚀岩石,导致储层渗透率和孔隙度降低或增大。通过长岩心驱替实验,分析CO2驱油过程中岩心物性变化的规律和不同驱替条件下导致物性变化的原因。
CO2reacts with oil,rock and water during CO2flooding to produce deposits or denudated rock,which lead to fluctuation of permeability and porosity of a reservoir.Long core displacement experiments are carried out to discover the causes and laws of physical properties changes of the core during different displacement conditions.
出处
《石化技术》
CAS
2015年第8期183-183,179,共2页
Petrochemical Industry Technology
关键词
CO2驱
物性变化
储层堵塞
无机沉淀
沥青质沉淀
CO2 flooding
physical property change
reservoir blocking
mineral deposit
asphalt deposit
